funpilot wrote:
I am not sure if the units are really made in the USA, but my research led me to believe that the second best units are PrecisionTemps. I could not find any claim that they are made in the USA but I know they have design patents. Biggest difference is that they require a minimum of 1.5 gallons per minute water flow and the Truma can go down to less than 0.5 GPM I believe. Not sure if it matters, but the PrecisionTemps BTUs are 55,000 while the Truma's are 60,000.
http://www.precisiontemp.com/rv-500-tankless-water-heater/
FunPilot, you're wrong on the flow rate, the Precision Temp unit needs a flow rate of 0.5 GPM to start the burner, not 1.5
It's the same for the Truma's unit.